Question

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Answer 1

A hasty generalisation is when you reach a general conclusion based on insufficient evidence. Basically, it usually means that person's thinking pattern works like this:
X is true for A
X is true for B
X is true for C
therefore, X must be true for D, E, F, etc.

"The elderly are often resistant to advances in technology" is a hasty generalisation because they may have surveyed a few elderly people, but not all may actually be resistant towards technology. For instance, my maths teacher LOVES her new smartboard!